With Explosion Or Breaking Container To Implode Patents (Class 166/299)
  • Patent number: 9752421
    Abstract: A switch includes a casing having a bore, a piston assembly having a first end and an exposed end, a plurality of flanges formed at the first end; an insulating sleeve enclosing the first end, a contact assembly disposed in the casing bore; a pin disposed in the bore; a predetermined quantity of lubricant deposited in the bore; and a spring urging the pin into engagement with the piston assembly. The insulating sleeve and the plurality of flanges are at least partially disposed in the casing bore. The pin has: (i) a first position wherein the pin electrically contacts the piston assembly and is electrically isolated from the contact assembly; and (ii) a second position wherein the pin is electrically isolated from the piston assembly and electrically engages the contact assembly. The predetermined quantity of lubricant may be approximately 0.3 grams.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: September 5, 2017
    Assignee: OWEN OIL TOOLS LP
    Inventors: Timothy E. LaGrange, Cory D. Day, George Patton, Dan W. Pratt, Bradley Vass
  • Patent number: 9689246
    Abstract: Downhole stimulation devices include an energetic material disposed within a housing and an initiator for igniting the energetic material. The initiator may comprise a shaped charge configured to produce a projectile to penetrate the energetic material to ignite the energetic material. The housing of the device may comprise a continuous outer surface. Methods of operating a downhole stimulation device include initiating an energetic material disposed within a housing of the stimulation device in order to burn the energetic material in a laterally extending direction transverse to a depth of a borehole in which the stimulation device is disposed.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 27, 2017
    Assignee: Orbital ATK, Inc.
    Inventors: Paul C. Braithwaite, Michael E. Adams
  • Patent number: 9617829
    Abstract: A tool assembly is provided that includes an actuatable tool such as a valve or a setting tool. And includes a location device that senses the location of the tool assembly within a tubular body based on a physical signature. The tool assembly also includes an on-board controller configured to send an activation signal to the actuatable tool when the location device has recognized a selected location of the tool based on the physical signature. The actuatable tool, the location device, and the on-board controller are together dimensioned and arranged to be deployed in the wellbore as an autonomous unit.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: April 11, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Bruce A. Dale, Randy C. Tolman, Pavlin B. Entchev, Renzo Moises Angeles Boza, Chris E. Shuchart, Eric R. Grueschow, Charles S. Yeh
  • Patent number: 9605514
    Abstract: An underbalance pressure generator includes a housing having a first end and a second end and defines a piston chamber that extends between the first and second ends. A piston is movably arranged within the piston chamber, and one or more influx ports are defined in the housing at or near the second to enable fluid communication between the piston chamber and an exterior of the housing. A locking mechanism is arranged at or near the second end and capable of securing the piston at or near the second end.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: March 28, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Mark S. Holly, Wei Zhang
  • Patent number: 9528338
    Abstract: An apparatus for releasing chemical agents in a well bore, comprising: a packaging material; a chemical agent, wherein the chemical agent is contained within the packaging material; and an adhesive, wherein the adhesive is attached to the packaging material and associated methods.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: December 27, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Lee J. Hall
  • Patent number: 9494021
    Abstract: A perforation gun system is provided including combinations of components including a top connector, a self-centralizing charge holder system and a bottom connector that can double as a spacer. Any number of spacers can be used with any number of holders for any desired specific metric or imperial shot density, phase and length gun system. A perforation gun system kit and a method of assembling a perforation gun system are also provided.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: November 15, 2016
    Assignees: DYNAENERGETICS GMBH & CO. KG, JDP ENGINEERING & MACHINE INC.
    Inventors: David C. Parks, Frank Haron Preiss, Liam McNelis, Eric Mulhern, Thilo Scharf
  • Patent number: 9394767
    Abstract: A method and apparatus is described for modifying downhole wellbore pressure at the instant that an explosive event occurs. By a significant temporary reduction in wellbore pressure, for example, an explosive cutter will be able to cut through thicker pipe in a deep well with high hydrostatic pressure. A favorable transient wellbore pressure is achieved by the selective timing of implosion and explosion devices, to improve the performance of certain explosive tools when subsequently initiated, such as shaped charge explosive cutters, severing tools, setting tools and perforating guns. As part of the system, each implosion or explosion device is initiated by a detonator having a preprogrammed control unit with a preselected timing delay to take advantage of the temporarily lowered wellbore pressure.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: July 19, 2016
    Assignee: Hunting Titan, Inc.
    Inventors: James E Brooks, Nolan C Lerche
  • Patent number: 9383094
    Abstract: A fracturing apparatus in a wellbore, having a housing with at least one injection port; an injection fluid supply interface to provide injection fluid for the fracturing apparatus; and at least one high pressure combustor received within the housing. The housing further includes a combustible medium interface that is in fluid communication with the at least one high pressure combustor, which is configured and arranged to provide repeated ignition cycles that include a combustion cycle that ignites the combustible medium and a fuel delivery cycle that delivers the combustible medium to the combustor, wherein pressure resulting from the combustion cycle forces the injection fluid out an injection port to cause fracturing in a portion of the earth around the wellbore.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 5, 2016
    Assignee: Orbital ATK, Inc.
    Inventors: Joseph A. Alifano, Daniel Tilmont
  • Patent number: 9175553
    Abstract: A perforating system having annular connectors for attachment between adjacent perforating guns and connectors. The connectors include male and female connectors with respective outer and inner contact surfaces. The connectors also include attachment for electrical detonators and/or booster charges for transferring ballistic detonations between the perforating gun and connector sub.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: November 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Jason McCann, Mark Sloan, James A. Weekley
  • Patent number: 9091163
    Abstract: Insensitive explosive compositions were prepared by reacting di-isocyanate and/or poly-isocyanate monomers with an explosive diamine monomer. Prior to a final cure, the compositions are extrudable. The di-isocyanate monomers tend to produce tough, rubbery materials while polyfunctional monomers (i.e. having more than two isocyanate groups) tend to form rigid products. The extrudable form of the composition may be used in a variety of applications including rock fracturing.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: July 28, 2015
    Assignee: Los Alamos National Security, LLC
    Inventor: Lloyd L. Davis
  • Patent number: 9074464
    Abstract: A method of verifying swelling of a swellable material in a well can include connecting a transmitter to a sensor which senses a parameter indicative of degree of swelling of the swellable material, and conveying a receiver into an interior of a tubular string. The transmitter transmits to the receiver an indication of the degree of swelling of the swellable material. A packer swelling verification system can include a swellable material which swells in a well, and a well tool which is conveyed to the packer in the well. The well tool receives an indication of a degree of swelling of the swellable material. A method of verifying whether a swellable material has swollen in a well can include positioning a conductor proximate the swellable material, whereby the conductor parts in response to swelling of the swellable material, and detecting whether the conductor has parted.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: July 7, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ronald L. Hinkie, Kurtis W. Price, Alf K. Sevre
  • Patent number: 9057261
    Abstract: Methods and systems are provided for fracturing rock in a formation to enhance the production of fluids from the formation. In one exemplary method, one or more wells are drilled into a reservoir, wherein each well comprises a main wellbore with two or more lateral wellbores drilled out from the main wellbore. One or more explosive charges are placed within each of the two or more lateral wellbores, and the explosive charges are detonated to generate pressure pulses which at least partially fracture a rock between the two or more lateral wellbores. The detonations are timed such that one or more pressure pulses emanating from different lateral wellbores interact.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: June 16, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Clifford Walters, Nancy Hyangsil Choi, Michael Edward McCracken, Jeff H. Moss
  • Patent number: 9057232
    Abstract: Several methods and devices are provided herein to generate shock waves that are used in the oil industry for well drilling, hydrocarbon or gas exploitation, fracking process or improved oil recovery (IOR), enhanced oil recovery (EOR), cleaning of process waters, oil spills byproducts and oil pipes, which can be used as independent systems or as auxiliary systems concomitantly with other existing technologies. The different devices consist of generating shock waves utilizing either one or more laser sources, or a self-generated combustible gas supply, or a micro-explosive pellet, or piezocrystals, or a piezofiber composite structure.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: June 16, 2015
    Assignee: Sanuwave, Inc.
    Inventors: Iulian Cioanta, Cary McGhin
  • Patent number: 8939210
    Abstract: A pipe severing tool is arranged to align a plurality of high explosive pellets along a unitizing central tube that is selectively separable from a tubular external housing. The pellets are loaded serially in a column in full view along the entire column as a final charging task. Detonation boosters are pre-positioned and connected to detonation cord for simultaneous detonation at opposite ends of the explosive column. Devoid of high explosive pellets during transport, the assembly may be transported with all boosters and detonation cord connected.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: January 27, 2015
    Inventors: William T. Bell, James G. Rairigh
  • Publication number: 20150021023
    Abstract: Providing high energy materials that can be placed in previously created fractures and activating them in place to extend or change an existing fracture system. Also detecting the location of fractures or permeable pathways and a means to assess the extent and efficiency of proppant emplacement.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Jeffery James Roberts, Roger D. Aines, Eric B. Duoss, Christopher M. Spadaccini, Kevin S. Vandersall
  • Patent number: 8881816
    Abstract: A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: November 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Timothy S. Glenn, John P. Rodgers, Jeff A. Nelson, John D. Burleson, Marco Serra, John H. Hales
  • Patent number: 8851191
    Abstract: A method for unseating a threaded connection of wellbore tubing within the wellbore. The method utilizes a back-off tool which consists of a tubular metal housing, a shaped charge and HNS detonating cord within the housing, and an explosive material attached to the housing. The back-off tool is detonated near the threaded connection, creating a shockwave that strikes the threaded connection with sufficient force to unseat the connection.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: October 7, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Nauman H. Mhaskar, William B. Harvey
  • Publication number: 20140290950
    Abstract: An antenna for receiving electromagnetic energy with multiple grid arrays includes first and second grid patterns of diodes each acting as a half-wave rectifying element when illuminated by the electromagnetic energy whereby the electromagnetic energy is efficiently converted into electrical current at an output even when the electromagnetic energy is randomly polarized. The multiple grid arrays are spaced from one another and can also be offset from one another. In accordance with an aspect of the invention, the first and second grid patterns of diodes have varying diode densities.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 2, 2014
    Inventors: Raphael J. Welsh, Larry J. House
  • Patent number: 8794326
    Abstract: A method of adjusting a pressure reduction to occur in a wellbore following firing of at least one perforating gun can include determining a desired free gun volume which corresponds to a desired pressure reduction in the wellbore resulting from firing of the perforating gun, and varying a free gun volume of the perforating gun until the free gun volume is substantially the same as the desired free gun volume. A well system can include at least one perforating gun positioned in a wellbore, the perforating gun comprising multiple perforating charges and a free gun volume, and the free gun volume being reduced by presence of a flowable material about the multiple perforating charges.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: August 5, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cam Le, Dennis J. Haggerty
  • Publication number: 20140202692
    Abstract: A method for extracting bitumen from a subterranean oil sand deposit including: drilling a portion of the deposit; fragmenting the drilled deposit; drilling of the fragmented deposit to allow for flooding, wherein one or more wells are drilled to provide access to the deposit and retrieval of extracted bitumen, to form a drilled fragmented deposit; flooding the drilled fragmented deposit with a first flood volume of fluid to permit the first flood volume of fluid to admix with the fragmented first portion, to re lease heavy oil from any inert material so that the heavy oil floats within the first flood volume of fluid in the drilled fragmented deposit to form a flooded first portion; recovering the heavy oil; and repeating the above for each additional portions.
    Type: Application
    Filed: June 28, 2012
    Publication date: July 24, 2014
    Inventor: Howard Keele
  • Patent number: 8763723
    Abstract: A cartridge for breaking rock which includes a tubular housing in which is formed a first compartment. The cartridge includes a first energetic composition inside the first compartment and a primer which is exposed to the first energetic composition. The cartridge includes a second compartment inside the tubular component and a plunger inside the tubular component which is movable under explosive force towards the primer. The cartridge still further includes a second energetic composition inside the second compartment and an actuator and a fuse for initiating the second energetic composition. The actuator has an area which is smaller than the cross-sectional area of the plunger and is movable, by movement of the plunger, towards the primer, and in that the primer is initiated by the actuator only when liquid fills a volume enclosed at least partly by surfaces of the actuator and of the primer.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: July 1, 2014
    Assignee: Sandvik Mining and Construction RSA (Pty) Ltd
    Inventors: Jarmo Uolevi Leppanen, Manfred Karl Heinrich Habeck
  • Patent number: 8757263
    Abstract: This invention relates to the oil and gas industry and to exploration and production of water resources, in particularly, for stimulation of fluid flow to the well, e.g., for higher oil production, productivity index, and recovery factor. The disclosed device and method can be used for higher permeability of the pay zone due to creation of a network of microcracks in the bottomhole formation zone and facilitates to increase the flow of oil, or other fluids, from the reservoir to the well. Generation of cyclic pressure pulses with varied amplitude and time parameters and proper localization of pulses in space through mechanism of convective combustion provides a “soft” impact upon the wellbore without risk of damage or formation consolidation; the said impact is achieved by using a device which is a downhole cyclic pressure generator operating by a consecutive combustion of layers of compositions having different combustion rates.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: June 24, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Alexey Evgenievich Barykin
  • Patent number: 8714252
    Abstract: A perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 6, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Timothy S Glenn, John P Rodgers, Jeff A Nelson, John D Burleson, Marco Serra, John H Hales
  • Patent number: 8714251
    Abstract: A perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.
    Type: Grant
    Filed: August 25, 2012
    Date of Patent: May 6, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Timothy S. Glenn, John P. Rodgers, Jeff A. Nelson, John D. Burleson, Marco Serra, John H. Hales
  • Patent number: 8684084
    Abstract: Methods and apparatus for perforating a formation in a wellbore without perforating a well bore casing. The methods and apparatus include an external casing perforating device configured so as not to perforate the casing. The interior of the perforating device serves as a fluid flow path between the casing and the formation following perforation and a valve in the casing selectively opens and closes the flow path.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: April 1, 2014
    Assignee: GEODynamics, Inc.
    Inventors: David S. Wesson, Kevin R. George, Philip M. Snider
  • Publication number: 20140060839
    Abstract: A fracturing tool includes a container structure, and a puncher charge arranged in the container structure, where the puncher charge if detonated is configured to extend an opening through the container structure without creating a perforation tunnel in a formation surrounding the well. An energetic material is to be initiated by detonation of the puncher charge, where the energetic material upon initiation creates an increased pressure in the well to perform fracturing of the formation.
    Type: Application
    Filed: November 13, 2012
    Publication date: March 6, 2014
    Applicant: North Schlumberger Oilfield Technologies (Xi'an) Co., Ltd.
    Inventors: Changshuan Wang, Yuanwen Yao, Senyuan Li, Guofu Feng, Feng (Rock) Wang, Baoxing Wang
  • Publication number: 20130341026
    Abstract: A fracturing apparatus in a wellbore, having a housing with at least one injection port; an injection fluid supply interface to provide injection fluid for the hydraulic fracturing apparatus; and at least one high pressure combustor received within the housing. The housing further includes a combustible medium interface that is in fluid communication with the high pressure combustor, which is configured and arranged to provide repeated ignition cycles that include a combustion cycle that ignites the combustible medium and a fuel delivery cycle that delivers the combustible medium to the combustor, wherein pressure resulting from the combustion cycle forces the injection fluid out an injection port to cause fracturing in a portion of the earth around the wellbore.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 26, 2013
    Inventors: Joseph A. Alifano, Daniel Tilmont
  • Publication number: 20130306316
    Abstract: A technique facilitates performance of a work over on a completion used in a wellbore. The completion comprises an upper completion coupled with a lower completion by a mandrel and a latch. When a work over is to be performed, the upper completion is separated by moving a cutter device down along the mandrel and operating the cutting device to sever the mandrel. Once the mandrel has been severed, the latch may be activated to release the upper completion for removal.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 21, 2013
    Applicant: Schlumberger Technology Corporation
    Inventor: Dinesh R. Patel
  • Patent number: 8575074
    Abstract: Insensitive explosive compositions were prepared by reacting di-isocyanate and/or poly-isocyanate monomers with an explosive diamine monomer. Prior to a final cure, the compositions are extrudable. The di-isocyanate monomers tend to produce tough, rubbery materials while polyfunctional monomers (i.e. having more than two isocyanate groups) tend to form rigid products. The extrudable form of the composition may be used in a variety of applications including rock fracturing.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: November 5, 2013
    Assignee: Los Alamos National Security, LLC
    Inventor: Lloyd L. Davis
  • Publication number: 20130284441
    Abstract: The pipe cutting capacity of an explosive pipe cutter may be improved by directing colliding shock fronts from opposite axial directions against a disc of metal having a shock impedance substantially corresponding to the shock impedance capacity of the explosive material
    Type: Application
    Filed: May 13, 2013
    Publication date: October 31, 2013
    Inventor: James E. Brooks
  • Patent number: 8567427
    Abstract: Blowout preventer blocks, each having a channel and plate(s) to close it. The blocks are placed over a pipe through which oil or other fluid is escaping, so that the pipe is in their channels. Alongside the channel in each block are one or more plates, having diameters somewhat larger than the diameter of the channel. Explosive charges propel the plates into the channel to seal it off and stop the leak. When multiple blocks and/or multiple plates in a block are placed over a pipe, the assembly may be referred to as a “Christmas tree.” There are passages that allow the plates to move into place to block the channel. Leading edges of the plates act as male elements that engage female reciprocal ends of the passages to create a seal. Grooves and tunnels in the plates allow fluid to escape into the pipe to ensure a seal.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: October 29, 2013
    Inventor: Philip John Milanovich
  • Publication number: 20130277047
    Abstract: A technique utilizes micro-tubing to facilitate performance of a well treatment in which the micro-tubing is deployed for cooperation with a larger tubing, such as a coiled tubing positioned in wellbore. The micro-tubing is used to deliver a separated chemical downhole to modify a property of a treatment fluid used in performing a desired well treatment operation at a desired treatment region along the wellbore. A variety of additional components may be combined with the micro-tubing to further facilitate the treatment application.
    Type: Application
    Filed: September 15, 2011
    Publication date: October 24, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yan P. Kuhn de Chizelle, Mathew M. Samuel, Douglas Pipchuk, Don Williamson, Andrey Mirakyan, Hemant K.J. Ladva, Richard D. Hutchins
  • Patent number: 8561683
    Abstract: An apparatus and a method for cutting a wellbore tubular may include an upper section and a lower section mating at a juncture plane defined by a plane transverse to the longitudinal axis of the wellbore tubular. Each section may include a support plate having a passage, a liner positioned adjacent to the support plate, and an energetic material disposed between the support plate and the liner. An initiator having a shaft may be positioned in the passages of the upper section and the lower section.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 22, 2013
    Assignee: Owen Oil Tools, LP
    Inventors: Jeffrey D. Wood, Timothy Edward LaGrange, Matthew Clay
  • Patent number: 8540027
    Abstract: Methods and apparatus for perforating a formation in a wellbore without perforating a well bore casing. The methods and apparatus include an external casing perforating device configured so as not to perforate the casing. The interior of the perforating device serves as a fluid flow path between the casing and the formation following perforation and a valve in the casing selectively opens and closes the flow path.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: September 24, 2013
    Assignee: GEODynamics, Inc.
    Inventors: David S. Wesson, Kevin R. George, Philip M. Snider
  • Patent number: 8522863
    Abstract: A fracturing system for wells has a propellant charge having a known surface area for combustion, and a combustion rate as a function of pressure with lower combustion rates at lower pressures and rapidly increasing combustion rates at higher pressures separated by a knee in the combustion rate function. The propellant charge is initially sealed within a vessel as it is inserted into a well. The system also includes means for creating openings in the vessel on ignition of the propellant charge in the well, such that the openings have a known combined flow area selected to create a condition of choked flow of combustion gases from within the vessel and maintain pressures within the vessel below the knee in the combustion rate function.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: September 3, 2013
    Assignee: Propellant Fracturing & Stimulation, LLC
    Inventors: John P. Tiernan, Guy B. Spear, Don Landis
  • Publication number: 20130199787
    Abstract: The present techniques provide systems and methods for fracturing a production formation. A method includes creating a notch in a formation and causing a volumetric change in a treatment interval proximate to a production interval so as to apply a mechanical stress on the production interval, wherein the treatment interval, the production interval, or both are located within the formation. A horizontal fracture is created in the formation originating from the notch.
    Type: Application
    Filed: October 14, 2011
    Publication date: August 8, 2013
    Inventors: Bruce A. Dale, Yueming Liang, Kevin H. Searles, Elizabeth Land Templeton-Barrett
  • Publication number: 20130199781
    Abstract: The present techniques provide methods and systems for fracturing reservoirs without directly treating them. For example, an embodiment provides a method for fracturing a subterranean formation. The method includes causing a volumetric increase in a zone proximate to the subterranean formation so as to apply a mechanical stress to the subterranean formation, creating a fracture network in the subterranean formation to improve permeability therein.
    Type: Application
    Filed: October 14, 2011
    Publication date: August 8, 2013
    Inventors: Bruce A. Dale, Kevin H. Searles, Sheng-Yuan Hsu, Michael S. Chelf
  • Patent number: 8424606
    Abstract: A perforating system having a perforating gun with a tubular gun housing defining an inner volume and extending in an axial direction. A shaped charge is held in a loading tube. The loading tube is located in the gun housing. The loading tube extends along the axial direction. The shaped charge faces in a firing direction substantially perpendicular to the axial direction. A portion of the gun housing adjacent to the shaped charge in the firing direction is a perforating portion for removal upon firing of the shaped charge. An eccentralizer member extends from the perforating gun in a second direction that is substantially opposite and parallel with the firing direction. A first retainer part extends from an outer surface of the gun housing adjacent to the perforating portion. A second retainer part extends from the outside of the gun housing adjacent to the perforating portion.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: April 23, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Lang Zhan, Jean-Luc Lafontan, Harvey Williams, Jeremy P. Harvey, Brenden Grove, Lawrence A. Behrmann
  • Patent number: 8397818
    Abstract: A method and a device for removing sediment or other undesired material (28) from a cavity (24) in a petroleum well (2) in which a tool (30) is moved down into the petroleum well (2). The method including placing a detonable charge (34) in the tool (30) and detonating the charge (34) after the tool (30) has been positioned in the petroleum well (2).
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: March 19, 2013
    Assignee: Aker Well Service AS
    Inventors: Espen Osaland, Lasse Haugland
  • Patent number: 8397813
    Abstract: A plug (20) is described for carrying out tests of a well (30), a pipe or the like, comprising an explosive charge (55) with an activation mechanism (50, 51, 53) and which is detonated to remove the plug when the test is completed, and the plug is characterized in that the explosive charge elements are arranged internally in the plug. The plug preferably comprises a boring (54) that holds said explosive charge (55) with the activation mechanism, and it can alternatively comprise two or more borings (54) for the placing of a corresponding number of explosive charges (55) with activation mechanisms. The explosive charge (55) with ignitor (56) and ignition pin (57) is preferably arranged in the plug boring (54) while the other parts (50, 51, 53) of the activation mechanism are integrated in the wall of the pipe bundle (10) that holds the plug.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: March 19, 2013
    Assignee: TCO AS
    Inventor: Viggo Brandsdal
  • Patent number: 8393392
    Abstract: A bottom hole assembly for one trip perforating and treating a wellbore, the bottom hole assembly including: a tool body including an outer surface and an upper end; a fluid passage extending into the tool body from the upper end; a valve to provide (i) in one orientation fluid access from the fluid passage to an outlet port opening to the outer surface and (ii) in another orientation fluid access from the fluid passage to a perforating gun actuation fluid supply channel while sealing fluid access from the fluid passage to the outer surface; an annular sealing member encircling the outer surface below the outlet port; and a perforating gun carried below the resettable, annular sealing member and hydraulically actuable to detonate by fluid communication through the perforating gun actuation fluid supply channel.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: March 12, 2013
    Assignee: Integrated Production Services Ltd.
    Inventors: Terry Lee Mytopher, Nathan Coffey
  • Publication number: 20130000908
    Abstract: Methods and systems are provided for fracturing rock in a formation to enhance the production of fluids from the formation. In one exemplary method, one or more wells are drilled into a reservoir, wherein each well comprises a main wellbore with two or more lateral wellbores drilled out from the main wellbore. One or more explosive charges are placed within each of the two or more lateral wellbores, and the explosive charges are detonated to generate pressure pulses which at least partially fracture a rock between the two or more lateral wellbores. The detonations are timed such that one or more pressure pulses emanating from different lateral wellbores interact.
    Type: Application
    Filed: February 17, 2011
    Publication date: January 3, 2013
    Inventors: Clifford C. Walters, Nancy Hyangsil Choi, Michael Edward McCracken, Jeff H. Moss
  • Publication number: 20120305252
    Abstract: Insensitive explosive compositions were prepared by reacting di-isocyanate and/or poly-isocyanate monomers with an explosive diamine monomer. Prior to a final cure, the compositions are extrudable. The di-isocyanate monomers tend to produce tough, rubbery materials while polyfunctional monomers (i.e. having more than two isocyanate groups) tend to form rigid products. The extrudable form of the composition may be used in a variety of applications including rock fracturing.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 6, 2012
    Applicant: Los Alamos National Security, LLC.
    Inventor: Lloyd L. Davis
  • Publication number: 20120298364
    Abstract: A multi-phase down hole injector related to a down hole tool for oilfield well drilling, has a shooting pipe, an axial hole disposed in the center of the shooting pipe, one end of the shooting pipe is connected to an ellipsoid guide, at least two housing seats sets are disposed along the shooting pipe, every housing seat set are disposed with at least two housing seats of radial symmetry, the inner ends of every housing seat is separately connected to the axial hole, every housing seat is disposed with a injection barrel by the base, and the explosive cavity is disposed between the base and the housing seat. The injected viscosity fluid can exert squeezing and shearing force to the rock to make the channel and breach smaller or eliminated.
    Type: Application
    Filed: April 8, 2011
    Publication date: November 29, 2012
    Inventors: Ganlu Liu, Yiqun Zhang, Ya Liu, Bo Chen, Tao Ke, Chengxing Chong
  • Patent number: 8316872
    Abstract: A blowout preventer with a block having a channel and one or more plates to close the channel. The block is placed over a pipe through which oil or other fluid is escaping, so that the pipe is in the channel. Alongside the channel are one or more circular plates, having diameters somewhat larger than the diameter of the channel. Explosive charges propel the plates into the channel to seal it off and stop the leak. The explosive charges may be ignited by radio, electric or sonic signals or other suitable means. There are passages for the plates that are orthogonal to the cylindrical channel, that allow the plates to move into place to block the channel, while preventing them from moving too far and overshooting the channel. Ratchets keep the plates from moving back after they have blocked the channel. Vents allow gas from the explosive charges to escape.
    Type: Grant
    Filed: December 18, 2010
    Date of Patent: November 27, 2012
    Inventor: Philip John Milanovich
  • Patent number: 8281858
    Abstract: Application of the method and device to a water well will permanently seal the well casing in order to prevent hydraulic cross-contamination with other water wells in the area. The method employs a string to explosive modules in spaced relation along the depth of a well casing. This weighted string of explosive modules is lowered into the well casing, wet concrete should then be introduced into the casing, after which the explosive elements are detonated sequentially, starting at the top of the well. Detonation of the elements in such a manner should force the wet concrete or cement out through the well casing perforations, so that the well casing will be entirely captured within the cured concrete. The individual explosive elements are made from detonating cord and metallic ball bearings wrapped into bundles, and then the bundles are bound in suitable adhesive tape.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: October 9, 2012
    Inventor: Bradley J. Challacombe
  • Patent number: 8272441
    Abstract: A system for positioning a downhole tool along a pipe string, the system having a series of seating subs inserted along the length of the pipe string wherein each seating sub has a seating aperture disposed around its internal periphery so as to form a bore plug seat of smaller diameter than the diameter of the pipe. The seating apertures are given distinctive diameters that are consecutively arranged along the pipe string length so that the aperture diameters decrease with increasing depth. A drop assembly having an aperture plugging diameter selected to pressure seal a selected aperture includes a bore pressure activated by-pass valve and firing head.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: September 25, 2012
    Inventors: Don Umphries, Gabe Williger
  • Patent number: 8210105
    Abstract: A method for detonation of a plug device in a fluid environment is described, which is in contact with a body, such as an ignition pellet, and it is characterized in that a number of pressure increases are exerted against the plug device, whereby each pressure increase causes a movement of a piston (10) which is radially arranged in a casing (12), which causes the casing (12) to move a fixed distance inward in the plug device with each pressure increase, up until the displacement of the casing (12) causes the piston to be displaced into a cavity (38), and the fluid environment enters the plug device via an inlet. Also described is a plug device which is in contact with a body, such as an ignition pellet, where the plug device is arranged to detonate after a number of pressure increases that are exerted against the plug device.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: July 3, 2012
    Assignee: TCO AS
    Inventor: Stig Ove Bjørgum
  • Publication number: 20120067578
    Abstract: An apparatus and a method for cutting a wellbore tubular are described herein. The apparatus and the method may include an upper section and a lower section mating at a juncture plane defined by a plane transverse to the longitudinal axis of the wellbore tubular. Each section may include a support plate having a passage, a liner positioned adjacent to the support plate, and an energetic material disposed between the support plate and the liner. An initiator having a shaft may be positioned in the passages of the upper section and the lower section.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 22, 2012
    Applicant: OWEN OIL TOOLS LP
    Inventors: Jeffrey D. Wood, Timothy Edward LaGrange, Matthew Clay
  • Patent number: 8127832
    Abstract: Methods and apparatus for stimulating oil or gas wells using material cemented outside the casing. Reaction agents, usually comprising oxygen-rich material and a coil of high order explosive, are positioned around the outside of the well casing at a desired level in a carrier and reacted later. The stimulation operation is initiated by firing a shaped charge into the high order explosive material. The combination of the explosive force of the high order explosive and burning of the oxygen-rich material fractures and cleans the formation adjacent to the well casing. The reaction agents may be provided in a sleeve supported on the casing joint at the time it is inserted into the well. In another embodiment, all components would be cemented externally to the casing and reacted remotely by a coded signal.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: March 6, 2012
    Inventor: Lesley O. Bond